Origin runs all EA games, including The Simpsons Tapped Out.

As of the middle of last year, in an effort to improve security they say, you can no longer able to update your email address for your Origin Account through Origin yourself. Instead, you need get in touch with EA directly to update your account’s email address.

To update your email address, just head to the Contact Us page at EA here: https://help.ea.com/contact-us . Then select Origin as your Product, Account/Registration as your Category, and your platform, and one of their advisors should be able to quickly help you with your change. Possibly this needs to be done within US business hours, but don’t quote me on that (and let me know if I’m wrong).